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(Sound of bubbles popping)
Hi everyone, my name’s Tim, I’m from the Questacon Science Squad
and I’m going to show you how to make your very own lava lamp.
You need a plastic cup which is filled to about a quarter of the way with water
some cooking oil
some white vinegar
some green food colouring and
some bi-carb soda.
Once you have these things, you can take the vinegar
and pour vinegar up to about halfway in the cup here.
Pour it straight into the water.
And then take a splash of the green food dye, pour that in.
There we go. Give it a good mix around.
And pour oil on top until it reaches pretty close to the top.
So now all you have to do is take out some of the
bi-carb of soda and sprinkle it on top of the oil.
Sprinkle a little bit more here as well.
And you can watch it bubble away.
If you want to find out how this lava lamp works
head to the Questacon Science Squad website.
See you next time.